need a blower cam for LT1

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Dec 11, 2003 | 01:09 PM

Blown Six

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From: Louisville, Ky

need a blower cam for LT1

Does anyone know of good street blower cam for stock heads? The engine is in the process of being a fully forged 355 right now and i need to know what a good cam would be.

Last edited by Blown Six; Dec 11, 2003 at 01:12 PM.

Dec 11, 2003 | 01:53 PM

rskrause

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From: Buffalo, New York

CC XE lobes 3190/3192 on a 114LSA with a 114 degree intake center line.

Rich Krause

Dec 11, 2003 | 04:36 PM

Blown Six

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From: Louisville, Ky

Quote:

Originally posted by rskrause
CC XE lobes 3190/3192 on a 114LSA with a 114 degree intake center line.

Rich Krause

What are the spec's of that cam?

Last edited by Blown Six; Dec 11, 2003 at 05:48 PM.

Dec 11, 2003 | 08:01 PM

engineermike

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Posts: 2,743

From: Baton Rouge, LA, USA

Quote:

Originally posted by Blown Six
What are the spec's of that cam?

214/224

These lobes are high lift: .530"/.567" with 1.5 rockers and .565"/.605" with 1.6's. So, first, you have to make sure your heads are able to tolerate that much lift without retainer/seal clearance issues, then you have to install a set of valve springs with alot of seat pressure (135 - 145 lb) to control the valvetrain under the aggresive ramps and make sure they don't coil bind.

Another option would be to use the 3313/3315 lobes for 218/230 on the same lobe centers Rich recommended above. This would give you .495"/.510" lift with 1.5's or .528"/.544" with 1.6's. This cam would be easier to set up , but would have less power throughout the rpm range than the 214/224 cam.

Personally, I use the high lift 224/236 lobes for .605" intake and .593" exhaust lift with 1.6 I and 1.52 E rockers, but this cam is probably a bit more than you're looking for.

Mike

Dec 11, 2003 | 09:54 PM

rskrause

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From: Buffalo, New York

What Mike said.

Rich Krause

Dec 11, 2003 | 11:03 PM

97WS6SCharged

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From: Jacksonville

The NX276HR is a nice blower cam, I belive that's the one Brook has for sale. The duration is 224/236 @ .50 and I believe the lift is .502/.520 with 1.5 rockers. .535/.555 with 1.6 rockers. I'm looking at this same cam for when my stock engine bites the big one.

Dec 12, 2003 | 01:23 AM

DrewHMS97SS

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Posts: 1,917

From: Las Vegas

if you dont have one i have one that i had custom made from comp for sale. i decided to go stroker + spray rather than boost

you might need new springs

dur @ .050 in 224 ex 230
lob lift in .3350 ex .340
lobe sep 114º

gross lift in .536 ex .544

im looking for 250, i paid 300. still in box/bag with all paperwork

Dec 12, 2003 | 03:40 AM

blk95zm6

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Joined: Oct 2001

Posts: 80

From: sea. wa. USA

I just bought that CC 218-230 .528-.544 profile from Thunder racing....I'm only going to run 9 psi (at first) but they say it's a good street\strip cam....Anyone currently running one?

Dec 12, 2003 | 02:15 PM

Blown Six

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Posts: 39

From: Louisville, Ky

Quote:

Originally posted by 97WS6SCharged
The NX276HR is a nice blower cam, I belive that's the one Brook has for sale. The duration is 224/236 @ .50 and I believe the lift is .502/.520 with 1.5 rockers. .535/.555 with 1.6 rockers. I'm looking at this same cam for when my stock engine bites the big one.

How's the the idle on this cam? What kind of powerband does it have?